423400334143023 has 8 divisors (see below), whose sum is σ = 627259754286000. Its totient is φ = 282266889428664.

The previous prime is 423400334143009. The next prime is 423400334143091. The reversal of 423400334143023 is 320341433004324.

423400334143023 is a `hidden beast` number, since 4 + 2 + 3 + 4 + 0 + 0 + 3 + 341 + 4 + 302 + 3 = 666.

It is not a de Polignac number, because 423400334143023 - 2¹³ = 423400334134831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423400334143723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7840746928548 + ... + 7840746928601.

It is an arithmetic number, because the mean of its divisors is an integer number (78407469285750).

Almost surely, 2^{423400334143023} is an apocalyptic number.

423400334143023 is a deficient number, since it is larger than the sum of its proper divisors (203859420142977).

423400334143023 is a wasteful number, since it uses less digits than its factorization.

423400334143023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15681493857158 (or 15681493857152 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 36.

Adding to 423400334143023 its reverse (320341433004324), we get a palindrome (743741767147347).

The spelling of 423400334143023 in words is "four hundred twenty-three trillion, four hundred billion, three hundred thirty-four million, one hundred forty-three thousand, twenty-three".